Viscous tilting and production of vorticity in homogeneous turbulence

Details Viscous tilting and production of vorticity in homogeneous turbulence Viscous tilting and production of vorticity in homogeneous turbulence

2010-02-08

arxiv.org/abs/1002.1724v1

Physics

Fluid Dynamics

Scientific paper

Viscous depletion of vorticity is an essential and well known property of turbulent flows, balancing, in the mean, the net vorticity production associated with the vortex stretching mechanism. In this letter we however demonstrate that viscous effects are not restricted to a mere destruction process, but play a more complex role in vorticity dynamics that is as important as vortex stretching. Based on results from particle tracking experiments (3D-PTV) and direct numerical simulation (DNS) of homogeneous and quasi isotropic turbulence, we show that the viscous term in the vorticity equation can also locally induce production of vorticity and changes of its orientation (viscous tilting).

Affiliated with

Also associated with

No associations

Rating

Viscous tilting and production of vorticity in homogeneous turbulence does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Viscous tilting and production of vorticity in homogeneous turbulence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Viscous tilting and production of vorticity in homogeneous turbulence will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-123856